Tina rides the bus to school, Theo bikes to school, and Tony walks to school. Their probabilities of being the first one to school are as follows:

P(Tina is first)=0.05
P(Theo is first)=85%
P(Tony is first)= 1/10

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Graph y = -|x| + 2. click on the graph until the correct one appears.

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample